Safety razor



I. S. BODKIN SAFETY RAZOR Oct. 6, 1931.

Filed Sept. 26. 1929 fi/////// w lNvENToR J: .5' TTORNEY Patented Get. 61931 UNITED STATES IRVING- S. BODKIN, OF NEW YORK, N. Y.,

OF BOSTON, MASSACHUSETTS, A. CORPORATION GILLETTE SAFETY RAZOR COMPANY,OF DELAWARE PATENT OFFICE ASSIGNOR, IBY MESNE ASSIGNMENTS, TO

SAFETY RAZOR Application. filed September 26, 1929. Serial No. 395,225.

My invention relates to improvements in safety razors, and hasparticular reference to the class-of safety razors in which a flexibleblade is clamped between two members 6 for shaving.

- An object of my invetion is to retain a blade on one of the razormembers, such as the guard member, when the members are separated, sothat the blade will not be dislodged from the member by tipping orshaking of said member, and Whereb wiping of the blade while upon saidmem er is facilitated.

Another object is to cause the razor memher that is not provided withthe blade-retaining means to resist slidin of the blade between themembers in a longitudinal direction.

My invention comprises novel details of improvement that will be morefully hereinafter set forth and then pointed out in the claims. 5

Reference is to be had to the accompanying drawings in which,

Fig. 1 is an end view of a safety razor embodying my invention; 1

Fig.2 is a section on line 2, 2 in Fig. 1;

Fig. 2a is an end view looking from the ri ht hand side of Fig. 2;

ig. 3 is a plan viewof the blade; 3 Fig. 4 is a plan view of the razorassembled for use with backing member partly broken faway; Fig. 5' is aplan view of the guard member;

Fig. 6 is a plan view'illustrating application of the blade to the guardmember, or removal of the blade therefrom; Fig. 7 isa plan viewillustrating the blade in shaving position upon the guard member; Fig. 8is a section on line '8, 8 in Fig. 7; Fig. 9 is a section on line 9, 9in Fig. 4, before the members are clamped against the blade for shaving;v

Fig. 9a is a section similar to Fig. 9, showing the parts in shavingposition;

Fig. 10 is a section on line 1O, 10 in Fig. 1; Fig. 11 is a section online 11, in Fig. 7, and Fig. 12 is a modification showing blade retainedon clamping member instead of guard member.

adapted to pass through an opening 5 in the Similar numerals indicatecorresponding parts in the several views.

At 1 is a guard member for blade 2, said member having comb-like teethluv. for the blade edges. At 3 is a backing member for the blade. Anwell known or desired means may beprovi ed for clamping the members 1and 2 against the blade. I have shown member 3 provided with a threadedstud 4.

blade and through an opening 6 1n member 1, which stud is adapted toengage a threaded opening 7 in a handle 8, (Fig. 2), for clamping theparts 1, 2 and 3 together for shaving. One of the razor members, such asthe guard member 1, is provided with studs 9 and 10, projecting from theblade-receiving side of the member, adapted to enter openings 5m in theblade that are spaced on opposite sides of the central opening 5, whenthe blade is laid upon said member, as illustrated in Fig. 6. At 11 is arelatively narrow elongated rib upon member 1, shown extendinglongitudinally along the member from the stud 10 toward the adjacent endof the member, and adapted to enter the longitudinal slot- 12 in theblade that extends between the openings 5 and 5a, said slot and openingsbeing in open communication, (Fig. 3). The openings 5a in the blade areelongated or slotted towards the adjacent ends of the blade, at 13. Thestuds 9 and 10 and the blade openings 5a are complemental and are widerthan the slot 12 and the slotted portions 13 of the blade in atransverse direction or toward the guard teeth and the cutting edges ofthe blade, so that when the blade is laid upon member 1 they studs willpass through the openings 5a and the rib 11 will project into the slot12, (Fig. 6). The studs 9and 10, on their sides toward the guard teeth,are undercut, at 9a: and 10a, (Figs. 8 and 9) so that the narrow partsof the studs will receive the slot 12 of the blade, the studs therebybeing what may be termed headed, to overlie adjacent edge portions ofthe blade in shaving position. When the blade is slid along the member1, from the position in Fig. 6 to the shaving position in Fig. 7, theblade openings 5a W111 pass away from the studs and the latter m willenter the slot 12 of the blade, and the outer overlying or headedportions of the studs that extend over the blade will retain the latteron member 1, (Fig. 9) The outer end of rib 11 is shown undercut orreduced angularly to receive the adjacent slot portion 13 of the bladein shaving position of the latter to limit slidin and lifting of theblade, Fig. 2) The mem er 1, at the end opposite t e rib'll, is shownprovided with an upstanding lug 14:, that is undercut or reducedangularly, to receive a notch or recess 15 at the adjacent end of theblade in shaving position, (Fig. 2). The blade openings 5a, the 15 slots12 and 13, and the notches or recesses 15 at both ends of the blade, aresymmetrical- 1y disposed respecting the longitudinal axis of the blade,so that the blade may be reversed end for end upon member 1, with eitherface 2 of the blade against said member, so that the studs, the slots 12and 13, and the lug 14, will cooperate appropriately with the blade toretain it upon said member.

The backing member 3 is shown provided with a projection 16, extendingtoward the blade to enter the notch 15 at the adjacent end of the bladeto prevent outward endwise movementofthe blade before being clamped. Themembers 1 and 3 are shown curved in a transverse direction to clamp theblade in a curved position for use, (Fig. 9a) The cur vature of theinner face of member 3 is on a shorter radius than the curvature of theouter face of member 1, providing a hollow space under member 3 in whichthe studs 9 and 10 are received when the members 1 and 3 are clampedagainst the blade for shaving with the outer edges of the member 3bearing against the blade. At the ends of mem- 40 ber 3, shown adjacent-to the corners, are

lateral projections 17, spaced apart, that are adapted to extend beyondthe adjacent end portions 18 of the blade, and to bear against theprojecting portions 19 at the ends of the the blade. The studs 9, 10 andthe bar 11 Will keep the blade in shaving position on member 1, with thecutting edges of the blade in shaving relation to the guard teeth, andthe projections 17 of the backing member 3,

j by engagement with the portions 19 of the blade, will keep the member3 in proper shaving position upon the blade. 1

When the blade has been laid upon member 1, as in Fig. 6, and is slidalong said member to the shaving position in Fig. 7, the studs '9, 10and the bar 11 will guide the blade and keep it from edgewisedisplacement and in pro er position, and so that the bladewill not alloff the member during no proper handling, the blade then being inposition to receive the backing member upon it. The member 3 will beguided to proper position upon the blade by the projections 17 engagingthe appropriate parts of the blade,

35 with the stud 4 passing through the openings 5 and 6 to receive thehandle. When the handle is screwed on stud 4 the parts will retain theirrelative positions, since the blade cannot shift edgewise relatively tothe studs 9, 10 and the bar 11. When the backing member 3 is removed theblade will be exposed upon the member 1 and may be wiped on top thereofwithout being dislodged therefrom. the studs 9 and 10 and the bladeopenings 5a are shown substantially in corresponding diamond-like shapewhereby they are elongated transversely of the blade so that the headedportions of the studs may overlie the metal at the sides of slot 12 tokeep the blade down on the member 1 in use and while cleaning andhandling. When the members 1 and 3 are clamped against the. blade theedges of the latter along the slot 12 are resisted by the overlying.headed portions of the studs 9 and 10, thereby preventin the metal alongthe slotted portion of the blade from bending outwardly under thebending strain, and reducing danger of the metal of the blade at the endportions aligned with the slot from breaking. The construction of theblade provides for increased flexibility and enables a thicker blade tobe provided than the so-called wafer blades in use.

Having now described my invention what I claim is:

1. A safety razor comprising blade clamping members having transverselycurved blade clamping surfaces, and means to retain said members upon ablade, one of said members having headed studs to enter openings and aslot entirely within the blade to retain the blade upon said member.

2. A safety razor as set forth in claim 1 in which the member having thestuds is provided with a bar to enter an opening and the slot of theblade.

3. A safetyv razor comprising blade clamp ing members havingtransversely curved .blade clamping surfaces, and means to retain saidmembers upon a blade, one of said members having headed studs and havinga bar narrower than the heads of the studs extending longitudinallyalong said member to enter openings and a slot entirely within the bladeto retain the blade upon said member. 4. A safety razor as set forth inclaim 3 in which the outer end of the bar is reduced to receive aslotted portion of the blade at one of the openings.

5. A safety razor comprisingblade clamping members havingtransverselycurved blade clamping surfaces, and means to retain saidmembers upon a blade, one of said members having headed studs that areelongated transversely of the member to receive openings in the bladecorresponding thereto, said studs being arranged to receive a slot inthe blade and to overlie the blade adjacent to said slot to retain theblade upon the member. 6. A safety razor as set forth in claim 5 inwhich the member havin the studs is provided with a bar to enter t eslot in the blade. 7 A safety razor comprising blade clampmg membershaving transversely curved blade clamping surfaces, and means to retainsaid members upon a blade, one of said members having a longitudinal barhaving a reduced outer end to receive a slot in the blade and to engagea portion of the blade at the end of the slot.

8. A safety razor comprising blade clamp ing members havin ransverselycurvedblade clamping surfaces, a (1 means to retain said members uponthe bla e, one of said members having a lug adjacent to one end thereof,said lug having a reduced inner portion to receive an adjacent outer endof the blade.

9. A safety razor comprising blade clamping members having transverselycurved blade clamping surfaces, and means to retain said members upon ablade, one of said members having headed studs to retain a blade uponsaid member, the other member having projections to engage the blade toretain the said member in operative position upon the blade.

10. A safety razor as set forth in claim 9 ,7 in which the memberhaving'the projections is provided with another projection to oppose theblade to keep it from sliding.

11. A safety razor comprising blade clampin members having transverselycurved blade clamping surfaces, means to retain said members upon ablade, one of said members having headed studs, and a blade havingspaced openings and having a slot communicating with said openingsentirely within the blade to receive saidstuds, narrow portions of thestuds receiving the blade slot and the headed portions of the studsoverlying the metal of the blade along the slot when the blade is inshavin position respecting the second named mem er. v

12. A safety razor as set forth in claim 11 in which the secondnamedmember is provided with a bar to enter the slot of the blade.

13. A safety razor as set forthin claim il. in which the said member isprovided with a lug to engage an end portion of the blade.

14. A safety razor as set forth in claim 11 in which the saidmember isprovided with a lughaving a reduced portion and the blade has a recessat its ends to receive said lug.

IRVING s. BODKIN,

